Ski binding



FIG. 1 is a side elevational view of a ski binding showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a ski binding, as shown and described.